飞机机翼着陆滑跑动态性能分析

飞机着陆滑跑过程中，机翼结构将受到较大的冲击作用和振动激励。为预判结构局部危险部位，给结构强度设计提供参考，需对机翼着陆滑跑过程中的动态性能进行分析。创新性地考虑了飞机滑跑速度和气动力的变化，为有限元计算提供可靠的外载输入，并合理设置约束条件，建立半机体有限元模型，降低计算规模。最后提取机翼各站位处的载荷响应峰值，做出动响应包线，预判结构局部危险部位，如机翼根部，为结构强度设计提供参考。

Dynamic Performance Analysis of Aircraft Wing in Landing and Taxiing

The wing structure suffers large impact and vibration in landing and taxiing. In order to predict local hazard areas of the structure and provide a reference for structural strength design, it is necessary to implement an analysis on wing dynamic performance in landing and taxiing. This paper considers innovatively about changes of aircraft taxiing rate and the aerodynamic force, which provide a reliable set of external input, and set reasonable constrains, establish half body finite element aeroplane model to reduce the size of the calculation. Finally, the peak load response of each wing station was extracted to make dynamic response envelope, and the local hazardous positions can be pre estimated to provide references for the structure design, such as the root of wing.